© Copyright 2003, American Fibertek, Inc. 0630JD
Instruction Manual
MR-440
Four Channel Video Receiver
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INSTALLATION AND OPERATION INSTRUCTIONS
INTRODUCTION
Thank you for purchasing your American Fibertek MR-440 multimode four channel video
receiver. Please take a few minutes to read these installation instructions in order to
obtain the maximum performance from this product.
FUNCTIONAL DESCRIPTION
The MR-440 operates as half of a transmitter / receiver pair for the transmission of four
simultaneous, real time, baseband NTSC, PAL, RS170, or RS343 video signals over a
single multimode fiber optic cable. It is designed to operate with the MT-440 or RT-440
four channel video transmitter.
The MR-440 receiver converts a single optical input into a maximum of four video
outputs. The 440 Series product is designed to operate over an optical loss budget
range of 0 to 12 dB. The system’s fiber bandwidth should be a minimum of 150 MHz at
1300 nm. For example, if the system fiber has a 600 MHz-km modal bandwidth
specification, the 440 will operate over a distance up to 4 km. The MR-440 operates on
50 um or 62.5 um multimode fiber. Refer to the data sheets for detailed performance
specifications.
This unit is contained in a compact and rugged extruded aluminum housing with internal
dc voltage regulation. The detachable terminal block and LED indicators provide for easy
installation and monitoring of video and power.
The MR-440 is designed for mounting as a modular stand alone unit. For a rack
mounted version please see the RR-440.
INSTALLATION
THE INSTALLATION OF THIS UNIT SHOULD BE MADE BY A QUALIFIED SERVICE
PERSON(S) AND MUST CONFORM TO ALL LOCAL CODES.
Mount the unit to a secure surface using #8 (3mm) hardware in four places. Mounting
dimensions can be found on the connection diagram included with this manual. Be sure
to allow sufficient room for the required minimum bend radius of the fiber cable used.
POWER SOURCE
Power to the unit must be within the specifications listed. A 24VAC center tap
transformer rated at 10VA is required. In the USA and in Canada an American Fibertek
PS-24CT-T is supplied with this unit.
POWER CONNECTION
Power is supplied to the unit via a three pin Phoenix connector. The ground wire from
the center tap supply must be connected to the center pin of the Phoenix connector.
When installed properly, the voltage measured from the center pin to either of the
outside pins will be 12 volts AC and voltage measured from one outside pin to the other
outside pin will be 24 volts AC.
INPUT / OUTPUT CONNECTIONS
The fiber optic connection is made via a ST connector located on the left side of the unit.
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Video output connections are located on the right side of the unit. A BNC connector is
provided for each channel. The 75Ω video outputs can be looped through typical
baseband video inputs of switchers, recorders and other equipment as required. For
proper operation, the outputs must be terminated with 75Ω. For optimum performance
the video cables should be the shortest length of coax practical.
MR-440 STATUS INDICATORS
The MR-440 receiver provides the following LED status indicators to aid in installation
and troubleshooting:
POWER
A green LED indicator monitors the internal voltages created within the MR-440. Power
status associated with this LED is summarized below.
Power Indicator Power Status
Green Voltage Present
Off Voltage Not Present
OLI
A green LED indicator monitors the power of the optical signal that is being received at
the MR-440 from the MT-440 or RT-440. Optical input status associated with this LED is
summarized below.
Optical Level Indicator Optical Status
Green Proper Optical Input Power Present
Off Optical Input Not Detected
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LIFETIME WARRANTY INFORMATION
American Fibertek, Inc warrants that at the time of delivery the products delivered will be
free of defects in materials and workmanship. Defective products will be repaired or
replaced at the exclusive option of American Fibertek. A Return Material Authorization
(RMA) number is required to send the products back in case of return. All returns must
be shipped prepaid. This warranty is void if the products have been tampered with. This
warranty shall be construed in accordance with New Jersey law and the courts of New
Jersey shall have exclusive jurisdiction over this contract. EXCEPT FOR THE
FOREGOING WARRANTY, THERE IS NO WARRANTY OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE OR OTHERWISE, EXPRESSED OR
IMPLIED, WHICH EXTENDS BEYOND THE WARRANTY SET FORTH IN THIS
AGREEMENT. In any event, American Fibertek will not be responsible or liable for
contingent, consequential, or incidental damages. No agreement or understanding,
expressed or implied, except as set forth in this warranty, will be binding upon American
Fibertek unless in writing, signed by a duly authorized officer of American Fibertek.
SERVICE INFORMATION
There are no user serviceable parts inside the unit.
In the event that service is required to this unit, please direct all inquiries to:
American Fibertek, Inc. Phone: (877) 234-7200
120 Belmont Drive Phone: (732) 302-0660
Somerset, NJ 08873 FAX (732) 302-0667
E-mail: [email protected]
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